Hi all....sorry when my english is bad

i buyed long time ago an alexmos 32bit 3 axis gimbal controller board...

today i have build in this board in my new 3 axis BL Gimbal for mini DSLR Camera.
It was working but not right...so i wanted to configure the Board.

i didn´t know what Firmware was on this board...so i installed 2.63b0 GUI.
at start the Gui tells me wrong version....Firmware 2.3b4 is on the Board....i need Gui 2.3b4.

also i start to google for this GUI...but not found.

So i think...ok....upgrade to 2.63......and flash Firmware.......

And this was the end of the Board...no Connection over USB anymore...no working....

What can i do?....its impossable to repair or is it now for "Garbage"??